(Bloomberg) -- Add the flap over U.S. immigration policy to investor concerns that are reigniting demand for precious metals as havens.

Long-only ETFs backed by precious metals have attracted about $200 million this month, on course for the first monthly inflow since October, data compiled by Bloomberg Intelligence showed. Almost $1.6 billion poured into the 10 precious-metals ETFs that have attracted the most money in January, with Frankfurt-listed Xetra-Gold ETF drawing in more than any other commodity ETF.

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